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Type of Controller

There are several types of controllers that are used for different applications: 1. Mass flow controllers measure and control the flow of liquids and gases at specific flow rates. 2. Pressure controllers, like regulators, automatically cut off fluid flow when a certain pressure is reached to control process pressure. 3. Level controllers, sometimes called pump controllers, control liquid levels in tanks and vats using pumps. 4. Temperature, PID, programmable logic, and other controllers are used to regulate variables like heat, pressure, speed and more in industrial processes and systems.

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Divyashini Mohan
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154 views2 pages

Type of Controller

There are several types of controllers that are used for different applications: 1. Mass flow controllers measure and control the flow of liquids and gases at specific flow rates. 2. Pressure controllers, like regulators, automatically cut off fluid flow when a certain pressure is reached to control process pressure. 3. Level controllers, sometimes called pump controllers, control liquid levels in tanks and vats using pumps. 4. Temperature, PID, programmable logic, and other controllers are used to regulate variables like heat, pressure, speed and more in industrial processes and systems.

Uploaded by

Divyashini Mohan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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TYPES OF CONTROLLERS

TYPE OF FUNCTIONS USES/ SYMBOLS PICTURES


CONTROLLER APPLICATION
A mass flow controller (MFC) is a Mass flow
device used to measure and controller is
control the flow designed and
MASS FLOW of liquids and gases. A mass flow calibrated to
CONTROLLER controller is designed and control a specific
calibrated to control a specific type type of liquid or
of liquid or gas at a particular gas at a particular
range of flow rates. The MFC can range
be given a set point from 0 to of flow rates.
100% of its full scale range but is
typically operated in the 10 to 90%
of full scale where the best
accuracy is achieved. The device
will then control the rate of flow to
the given set point. MFCs can be
either analogue or digital.
Electro-mechanical devices used Pressure
for controlling process/system regulators are
PRESSURE pressure in various industrial valves that
CONTROLLER processes. They rely on a variety automatically cut
of sensing elements such as a off the flow of a
bellows, diaphragms, capsules gas or liquid
and bourdon tubes. when it is at a
certain pressure.
Regulators are
also used to allow
high-pressure
fluid supply tanks
or lines to be
reduced to a
usable and safe
pressure for
different
applications.
Mechanical or electro-mechanical Widely used in
devices used for controlling the water works and
LEVEL levels of tanks, vats, etc. usually sewers for
CONTROLLER by means of pumps, and they are buildings and
sometimes called pump housing
controllers. complexes,
industrial sites.
Usually used
Electronic devices used for in robotic
PROGRAMMABLE controlling automatic devices,
LOGIC CONTROLLER machinery, processes, etc. manufacturig
Key specifications include the industries,
intended application, type, assembly
function, mounting style, as lines and
well as power requirements. household
appliances

A temperature controller - Usually used


often called a PID controller is in heater,fan,
TEMPERATURE an instrument used to control boilers,laser,
CONTROLLER temperature. The temperature tanks,
controller takes an input from a furnaces,etc.
temperature sensor and has
an output that is connected to
a control element such as a
heater or fan.

A PID controller is an Practical


instrument used in industrial application is
control applications to regulate in the field of
PID CONTROLLER temperature, flow, pressure, automatic
speed and other process steering
variables. PID (proportional systems for
integral derivative) controllers ships,also
use a control loop feedback used in
mechanism to control process manufacturin
variables and are the most g industry,
accurate and stable controller. electronic
and
controllers

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